Easy Thermometer v1

An easy to build thermometer using Arduino, digital temperature sensor, and LCD display.

Aug 23, 2018

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3 respects

environmental sensing

Components and supplies

Resistor 4.75k ohm

Resistor 221 ohm

Jumper wires (generic)

DS18B20 Programmable Resolution 1-Wire Digital Thermometer

Arduino UNO

Breadboard (generic)

Standard LCD - 16x2 White on Blue

Apps and platforms

Arduino IDE

Project description

Code

arduino

WARNING: It works only on USB power

1#include <OneWire.h>
2#include <DallasTemperature.h>
3#include <LiquidCrystal.h>
4
5#define  ONE_WIRE_BUS 7
6
7OneWire oneWire(ONE_WIRE_BUS);
8
9DallasTemperature sensors(&oneWire);
10
11LiquidCrystal  lcd(12, 11, 5, 4, 3, 2);
12
13double x;
14
15void setup(void)
16{
17  Serial.begin(9600);
18  Serial.println("Dallas Temperature Sensor");
19  lcd.begin(16, 2);
20  sensors.begin();
21}
22
23void  loop(void)
24{
25  sensors.requestTemperatures();
26  serial();
27  x = (sensors.getTempCByIndex(0));
28  delay(500);
29  lcd.setCursor(0, 1);
30  lcd.print(" ");
31  lcd.print(x);
32  lcd.print("*C");
33}
34
35void serial(){
36  Serial.print("Requesting temperatures...");
37  Serial.println("DONE");
38  Serial.println(sensors.getTempCByIndex(0));
39}

#include <OneWire.h>
#include <DallasTemperature.h>
#include <LiquidCrystal.h>

#define  ONE_WIRE_BUS 7

OneWire oneWire(ONE_WIRE_BUS);

DallasTemperature sensors(&oneWire);

LiquidCrystal  lcd(12, 11, 5, 4, 3, 2);

double x;

void setup(void)
{
  Serial.begin(9600);
  Serial.println("Dallas Temperature Sensor");
  lcd.begin(16, 2);
  sensors.begin();
}

void  loop(void)
{
  sensors.requestTemperatures();
  serial();
  x = (sensors.getTempCByIndex(0));
  delay(500);
  lcd.setCursor(0, 1);
  lcd.print(" ");
  lcd.print(x);
  lcd.print("*C");
}

void serial(){
  Serial.print("Requesting temperatures...");
  Serial.println("DONE");
  Serial.println(sensors.getTempCByIndex(0));
}

Downloadable files

Mounting Plate in Fritzing

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